10 Oct 2022

Hatcher management programs

Cobb-Vantress has developed the hatcher management programs as a reference for the ideal time, temperature, ventilation, and...

Cobb-Vantress has developed the hatcher management programs as a reference for the ideal time, temperature, ventilation, and humidity conditions for a proper incubation process.

Ttime-icon-hatcher-programsIME

THE HATCH WINDOW

The hatch window is the time frame spanning from the first chick to the last chick hatching.

hatching-chick-icon-hatcher-programsIf the chicks are hatching too early, they can become susceptible to problems such as: dehydration, which can lead to increased 7- and 14-day mortality and poor broiler performance.

Chicks hatching too late can cause:

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just-right-hatcher-management-programs-cobb

Photo 1. Just right

early-hatch-hatcher-management-programs-cobb

Photo 2. Early hatch

It is important to note that you cannot hatch all the chicks at the same time, and it is normal to see a hatch window of 24 to 30 hours from first to last chick. Hatch time among eggs varies but is largely dependent on the rate of embryo development where:

For optimal hatch and chick quality, it is critical to maintain a uniform temperature and humidity across the hatcher.

hatch-window-evaluation-hatcher-programs-cobb

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Table 1. Hatch window assessment

 

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Graph 1. Ideal percent hatched and ideal hatch spread

eggshell-cleanlinessEGGSHELL CLEANLINESS

In addition to chick temperature, the eggshells in the hatcher basket can be used to indicate if adjustments are needed to the time and temperature of chicks in the hatcher.

baby-chick-cobbWhen chicks have been in the hatcher too long, the eggshells can become soiled with green meconium (the first chick droppings)

egg-cobbClean eggshells can indicate proper hold time in the hatcher but check chicks to ensure they are dry. Completely clean




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